Apparently Nintendo is Still Hosting Their Old Websites, You Can Access Them From the Current Official Wario Ware Website

If you mash the "aroma button" on the official Wario Ware series website and answer "No" every time you are asked if you want to fix it, it takes you to the original website for the GBA Wario Ware game. You can hit the arrows at the bottom of each page to access other old content: https://www.nintendo.com/jp/character/wario/en/special/onarabutton/index.html